Should Ultregra DI2 sound like this on the Largest gears?
Should Ultregra DI2 sound like this on the Largest gears?
byu/virTuu inbikewrench
by virTuu
Should Ultregra DI2 sound like this on the Largest gears?
Should Ultregra DI2 sound like this on the Largest gears?
byu/virTuu inbikewrench
by virTuu
7 Comments
Doesn’t sound out of the ordinary to me.
I think what you are hearing is the short radius of using the smallest cog. On one of my bikes the drivetrain feels slightly more lumpy, and less smooth when in the smallest cog, and I believe it is because I am asking the chain to make a tight radius turn under tension.
Happy to be corrected though.
Note: the chain also makes tight radius turns at the jockey wheels, but it is not under any tension at that point in the cycle.
Never judge a drive train upside down.
A bit of lube brother, get that thing rubber side down
Why is your bicycle upside down?
*The Keepers* rule # 49: Keep the rubber side down.
[si.shimano.com](http://si.shimano.com)
Check your lower limit and the indexing.
This doesn’t sound crazy.
>it also feels clunky through the crank and almost feels like it skips a ring in the same sometimes because theres a small jolt in the crank when i shift into those larger gears.
Gonna try and read the tea leaves here, but are you shifting under high load? If so, yeah you’ll get a jolt. Also, are you cross chaining? My guess is your lower limit is just off a bit. Head over to Shimano’s tech docs and double check your shit.